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/* Copyright (c) 2010-2025. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
/* This example shows how to use Activity.await_until() and
* Activity.await_for() on a given communication.
*
* It is very similar to the comm_await example, but the sender initially
* does some waits that are too short before doing an infinite wait.
*/
import java.util.Vector;
import org.simgrid.s4u.*;
class sender extends Actor {
int messages_count;
int payload_size;
public sender(int messages_count_, int payload_size_)
{
messages_count = messages_count_;
payload_size = payload_size_;
}
public void run() throws SimgridException
{
Vector<Comm> pending_comms = new Vector<>();
Mailbox mbox = this.get_engine().mailbox_by_name("receiver-0");
/* Start dispatching all messages to the receiver */
for (int i = 0; i < messages_count; i++) {
String payload = "Message " + i;
// 'msgName' is not a stable storage location
Engine.info("Send '%s' to '%s'", payload, mbox.get_name());
/* Create a communication representing the ongoing communication */
Comm comm = mbox.put_async(payload, payload_size);
/* Add this comm to the vector of all known comms */
pending_comms.add(comm);
}
/* Start the finalize signal to the receiver*/
String payload = "finalize";
Comm final_comm = mbox.put_async(payload, 0);
pending_comms.add(final_comm);
Engine.info("Send 'finalize' to 'receiver-0'");
Engine.info("Done dispatching all messages");
/* Now that all message exchanges were initiated, wait for their completion, in order of creation. */
while (pending_comms.size() > 0) {
Comm comm = pending_comms.remove(0);
comm.await_for(1);
}
Engine.info("Goodbye now!");
}
}
class receiver extends Actor {
public void run() throws SimgridException
{
Mailbox mbox = this.get_engine().mailbox_by_name("receiver-0");
Engine.info("Wait for my first message");
for (boolean more_messages = true; more_messages;) {
String received = (String)mbox.get();
Engine.info("I got a '%s'.", received);
if (received.equals("finalize"))
more_messages = false; // If it's a finalize message, we're done.
}
}
}
public class comm_awaituntil {
public static void main(String[] args)
{
Engine e = new Engine(args);
e.load_platform(args[0]);
e.add_actor("sender", e.host_by_name("Tremblay"), new sender(3, (int)5e7));
e.add_actor("receiver", e.host_by_name("Ruby"), new receiver());
e.run();
}
}
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